Hello.
When performing the basic settings for block 003 using VAG COM 311, the glow plug warning light flashes irregularly, but at very short intervals. The pattern is 6-8 short flashes, followed by 2 very short flashes in quick succession, all within a 0.5-second interval. Is this normal? It's obvious that I have a problem with the EGR system. But is it really coming from the control unit (rough idle during warm-up)? I didn't have this problem from the beginning... The EGR valve has already been replaced. I also adjusted the value to the maximum (33638). Now the target value is approximately 345 mg/h (previously 255), and the desired value is about 430. But the jerking is still there. The EGR valve switches between active and inactive approximately every 5-8 seconds. By the way, when the engine slowly increases its RPM, it shakes violently around 1100 RPM, and then the jerking stops immediately.
Thank you for your answers

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cu moby